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Eaton EHD3015 molded case circuit breaker three pole 480V AC

Eaton

Eaton EHD3015 Molded Case Circuit Breaker 15A 3 Pole 480V AC

SKU CH-TZZ2-C8HVZ

A 15 A, three-pole molded-case breaker rated for 480 V AC and 250 V DC with thermal-magnetic trip and 18 kA interrupting at 240 V AC

  • 15 A three-pole breaker protects three-phase circuits at 480 V AC
  • Thermal-magnetic trip unit operates from 10 A to 100 A for flexible overload protection
  • 18 kA interrupting rating at 240 V AC handles high fault currents safely
  • Fixed instantaneous trip gives predictable short-circuit response
  • Lug terminals on load side simplify wiring in panels

Industrial three-pole protection

The Eaton EHD3015 is a molded case circuit breaker rated at 15 A and 480 V AC for three-phase power systems. It uses thermal-magnetic trip units with a low setting of 10 A and a high setting of 100 A to protect conductors and equipment in motor control centres and switchboards. The fixed instantaneous trip responds to short-circuit currents without adjustment.

18 kA interrupting at 240 V AC

The breaker carries a maximum AIR rating of 18 kA at 240 V AC, which defines the highest prospective fault current it can safely clear at that voltage. At the rated 480 V AC the interrupting capacity is lower, so the device must only be applied where the available fault current does not exceed the published curve. It also carries a 250 V DC rating for limited direct-current applications.

Replaces older 100 A frame thermal-magnetic units

This 100 A frame breaker serves as a direct replacement for legacy three-pole units in Allen Bradley, Eaton, Rockwell Automation and Westinghouse enclosures that use the same lug pattern and mounting footprint. The jump is worth it when the existing breaker shows nuisance tripping, contact erosion or when a panel upgrade demands a new device with current production date codes.

Highlights

  • 15 A three-pole breaker protects three-phase circuits at 480 V AC
  • Thermal-magnetic trip unit operates from 10 A to 100 A for flexible overload protection
  • 18 kA interrupting rating at 240 V AC handles high fault currents safely
  • Fixed instantaneous trip gives predictable short-circuit response
  • Lug terminals on load side simplify wiring in panels

Specifications

BrandEATON

Questions about this item

Should I choose the 15 A or 100 A trip setting for my application?

The breaker is rated 15 A continuous current. The low and high trip settings of 10 A and 100 A define the adjustable thermal-magnetic range; select a setting within that window that matches your load and coordination study.

What does the 18 kA rating mean when the breaker is installed in a 480 V panel?

The 18 kA interrupting rating is specified at 240 V AC. At 480 V AC the interrupting capacity will be lower; consult Eaton's published curves for the exact value at 480 V.

Can the 3-pole EHD3015 be used on a 250 V DC system?

Yes. The breaker carries a 250 V DC voltage rating in addition to 480 V AC, so it is suitable for DC circuits up to 250 V when wired per the manufacturer's instructions.

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